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1991 Chevrolet 3.1 liter turns over with no start i have no fault codes replaced the coil pack module but no change am i dealing with a bad ecm please help?
Wiki User
∙ 17y ago
Have you checked for spark after you replaced the pack? if not i would check the crank sensor. ANSWER I would check to see if you have fuel pressure before I would check the crank sensor which I think would throw a code. Spray a little throttle body cleaner into the engine and then crank it. Does it start? IF so you have a fuel problem and it is NOT SPARK. Just turn the key on and go back to see if you hear the fuel pump running. I just wonder why you are looking for spark unless you did some tests for it.
Wiki User
∙ 17y ago
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